Annual report pursuant to Section 13 and 15(d)

Income Taxes - NOL carryforwards (Details)

v3.20.4
Income Taxes - NOL carryforwards (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Indefinite Carryforward Period  
Operating Loss Carryforwards [Line Items]  
NOL carryforwards $ 158.7
Expire at Various Dates Through 2037  
Operating Loss Carryforwards [Line Items]  
NOL carryforwards 135.7
Federal  
Operating Loss Carryforwards [Line Items]  
NOL carryforwards 294.4
Tax credits 14.9
State  
Operating Loss Carryforwards [Line Items]  
NOL carryforwards 298.0
Tax credits $ 3.2